|
|
Numéro de référence | YB1313 | ||
Description | Charge Pump | ||
Fabricant | Yobon | ||
Logo | |||
1 Page
www.DataSheet4U.com
YB1313
1x/1.5x/2x Charge Pump for White LED Application
Description
The YB1313 charge pump is designed to drive
up to 5 white LEDs with regulated constant
current in back lit display application. The
device can provide up to 25 mA per LED for a
total of more than 125 mA. The input voltage
ranges from 2.7V to 5.5V and is ideal for
applications powered by a single LI-Ion or 3 to
4 NiCd, NiMH or Alkaline batteries.
The 1MHz fix-frequency switching allows for
tiny external components, and the regulation
scheme is optimized to ensure low EMI and
low input ripple.
Internal soft-start circuitry effectively reduces
the in-rush current. YB1313 also provides short
circuit protection, over-temperature protection
and over-voltage protection. In shutdown mode,
the shutdown current is less than 1μA. YB1313
is available in a TQFN-16 3x3 package.
Features
Input Range : 2.7V to 5.5V
Drives up to 5 LEDs at 25mA Each
1MHz Internal Oscillator
Thermal Protection Shutdown
Output Short-circuit Current Limit and
Over-voltage Protection
Under-Voltage Lockout With Hysteresis
Automatic Soft-Start Reduces In-Rush
Current
Three Charge Pump Mode:1x/1.5x/2x
3mm x 3mm TQFN package
Applications
White LED Backlighting
Handheld PCs and PDAs
Mobile Phone
Typical Application Circuit
VIN = 2.7V
To 5.5V
1 µF
0. 47 µF
0. 47 µF
VIN VOUT
C1+
D1
C1- D2
C2+
D3
YB 1313
C2- D4
EN1
D5
EN2
GND
ISET
PGND
2.2uF
YB1313 MRev.1.1
Figure 1. Typical application circuit
www.yobon.com.tw
1
|
|||
Pages | Pages 9 | ||
Télécharger | [ YB1313 ] |
No | Description détaillée | Fabricant |
YB1313 | Charge Pump | Yobon |
YB1315 | High Efficiency Charge Pump White LED Driver | YOBON TECHNOLOGIES |
YB1316 | Step-Up/ Step-Down / Fixed Output Application | YOBON TECHNOLOGIES |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
www.DataSheetWiki.com | 2020 | Contactez-nous | Recherche |